@Chip, wonder if you can ask Toru about shinny exterior on some Tokoname kyusu. With the sculpted exterior on yours it looks like very fine clay is used and fired at higher temperatures so exterior melting point is higher than interior, causing a shiny surface. Just a thought, since I too have a few shudei Tokoname kyusu that are shinier on exterior than interior and don’t look burnished.Chip wrote: ↑Mon Feb 10, 2020 10:24 pmI notice this w/ many kyusu featuring physically altered or manipulated exteriors such as Kenji, Yoshiki, Gyokuryu, etc where the exterior is more polished looking while the interior is rougher clay.Victoria wrote: ↑Mon Feb 10, 2020 9:24 pmOhhh, a very beautiful filter. Nice to see this special kyusu found a good home. Does the shudei clay feel any different from other burnished (namamigaki) ones you have? Well it looks shiny from burnishing, it could be something else in the clay that gives this effect.
Could it be from rubbing during the manipulation of the exterior, namamigaki (Hojo) or a thin "slip" layer of finer or more filtered clay added to the exterior?
I could only speculate ...
Left: Hokujo twisted spout Shudei clay with shinny exterior
Right: Shimizu Ken Nosaka clay without Namamigaki (not burnished)